Neon sign



FIG. 1 is a first perspective view of a neon sign showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a back view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof; and,

FIG. 9 is an enlarged detailed view of the encircled area 9 in FIG. 6.

The broken lines in the drawings show portions of the neon sign that form no part of the claimed design. 

CLAIM The ornamental design for a neon sign, as shown and described. 